<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="ko" lang="ko">
    <head>
        <title>二维码助手</title>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
        <meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=no" />
        <script type="text/javascript" src="jquery.min.js"></script>
        <script type="text/javascript" src="qrcode.js"></script>
    </head>
    <body>
        <div style="width: 80%; margin: 40px auto">
            输入要生成二维码的内容：
            <input id="text" type="text" value="http://www.bchain.top" style="width: 100%; padding: 10px" /><br />
            <div id="qrcode" style="width: 200px; height: 200px; margin-top: 15px; margin: 30px auto"></div>
        </div>

        <script type="text/javascript">
            const urlObj = new URL(window.location.href);
            var atVeno = urlObj.searchParams.get("atVeno");

            document.title = "二维码助手 - " + atVeno;

            var qrcode = new QRCode(document.getElementById("qrcode"), {
                width: 200,
                height: 200,
            });

            function makeCode() {
                var elText = document.getElementById("text");

                if (!elText.value) {
                    alert("Input a text");
                    elText.focus();
                    return;
                }

                qrcode.makeCode(elText.value);
            }

            makeCode();

            $("#text")
                .on("blur", function () {
                    makeCode();
                })
                .on("keydown", function (e) {
                    if (e.keyCode == 13) {
                        makeCode();
                    }
                });
        </script>
    </body>
</html>
